Updated server again

feat(api): move Gemini API calls to backend server

[dyad] Fixing Hugging Face secret handling - wrote 2 file(s)

[dyad] Fixing environment variable issues - wrote 2 file(s) + extra files edited outside of Dyad

[dyad] Implement guest mode for builder - wrote 3 file(s), deleted 8 file(s)

Init Dyad app